4.1.2 Limitations

Due to limitations in the interpreter used to compile interpreted UDF source code in ANSYS FLUENT, interpreted UDFs are limited in their use of the C programming language. In particular, the following elements of C cannot be used in interpreted UDFs:

• goto statements

• non ANSI-C prototypes for syntax

• direct data structure references

• declarations of local structures

• unions

• pointers to functions

• arrays of functions

• multi-dimensional arrays